Thomas is a geographer with more than 30 years experience in the mining sector. He has been an associate of Projekt-Consult in Germany since 1990 and general manager since 2014. He has been responsible for the management of different programmes worldwide with a focus on artisanal and small-scale mining (ASM). Between 1994 and 2007, he was based in South America, managing ASM and trade related donor programmes. He has participated in the drafting group of the supplement on gold for the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas. Since 2013 he has been the global programme manager of the Swiss Better Gold Initiative for ASM.